It may be help.
1. Slow to get connect phone signal.
2. Thailand TRUE operator not show 3G/4G, only 2G with weak signal
3. Before and after take camera look different, during take photo nice bright colors but after see in photo category have a little bit red.
4. When turning a flashlight ON flash is flashing. Previous when turning a flashlight ON, flashlight always ON.
5. Sometime cannot call or received a call but got a message saying that someone is trying to contact.